CXA3235 Sony Corporation, CXA3235 Datasheet
CXA3235
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CXA3235 Summary of contents
Page 1
... All Band TV Tuner IC with On-chip PLL Description The CXA3235/3236N is a monolithic TV tuner IC which integrates local oscillator and mixer circuits for VHF band, local oscillator and mixer circuits for UHF band amplifier and a tuning PLL onto a single chip, enabling further miniaturization of the tuner. ...
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... MIX VHFin 13 UHFin1 14 UHF MIX 15 UHFin2 Shift Divider Register 1/512,640,1024 Phase Detector Band SW Driver Divider 14/15bit Prescaler 1/8 Bias Buffer Buffer Buffer —2— CXA3235/3236N REF 29 REFOSC OSC CPO 28 Charge Pump 27 CPE LOCK 26 LOCK Det 25 IF OUT GND ...
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... 150k (when open) 50k 20k 10 — —3— CXA3235/3236N Pin voltage Description (V) — Clock input. — Data I/O. Address selection. 1.25 This pin controls bits 2 and 1 of the address byte Output for FM TRAP Power supply output for VL band Power supply pin for VH ...
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... 2.4 (UHF) — (VHF) 2.4 (UHF) 3.2 (VHF) 2.9 (UHF) —4— CXA3235/3236N Description Pin used for selecting a frequency step mode. Any of the five modes can be selected by applying an input voltage. VHF input. The input format is unbalanced 0 input. 0 UHF inputs. The input method can be 0 selected from balanced input or unbalanced input ...
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... CC 22 40k 26 (UNLock 200 28 500 27 20k 60k 30p 30p —5— CXA3235/3236N Description (V) — PLL circuit power supply. — PLL circuit GND. 2.3 IF output. 5.0 (Lock) LOCK detection. High when locked, Low when 0.2 unlocked. NPN transistor connection for 0.6 varicap diode drive. ...
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... OSC ∆f when changes ± UHF operation f = 405 MHz OSC ∆f when changes ± UHF operation f = 845 MHz OSC ∆f when changes ± —6— CXA3235/3236N ( Ta=25 °C) CC Min. Typ. Max. Unit Min ...
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... See Timing Chart on Page 15. See Timing Chart on Page 15. See Timing Chart on Page 15. See Timing Chart on Page 15. See Timing Chart on Page 15. See Timing Chart on Page 15. See Timing Chart on Page 15. —7— CXA3235/3236N ) is 100 kHz ±12 MHz. Min. Typ. Max GND 1 ...
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... CXA3235/3236N 4.5t 4.5t 56p 56p BVH BU 100 1n 3.3µ 1n +5V —8— CXA3235/3236N 1.2k 1n 3.2ø 47k 5.5t 47k 47k 1n 47k 3.0ø 2.5t 150p 1T363 47k 1n 1T362 56p 1p 16p ...
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... Description of Functions The CXA3235/3236N is a terrestrial wave broadcast tuner IC which converts frequencies order to tune and detect only the desired reception frequency of VHF, CATV and UHF band signals. In addition to the mixer, local oscillator and IF amplifier circuits required for frequency conversion to IF, this IC also integrates a PLL circuit for local oscillator frequency control onto a single chip ...
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... AC coupled inside the IC and input to the IF amplifier. • Single-tuned filters are connected to Pins 9 and 10 in order to improve the interference characteristics of the IF amplifier. • The signal amplified by the IF amplifier is output from Pin 25. The output impedance is approximately 75 Ω. (See the Electrical Characteristics Measurement Circuit.) —10— CXA3235/3236N ...
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... CC 15 bit 512 CC 512/ 15 bit 640/ CC 1024 MA1 MA0 —11— CXA3235/3236N Frequency Reference frequency step 3.90625 kHz 31.25 kHz 7.8125 kHz 62.5 kHz 6.25 kHz 50 kHz 7.8125 kHz 62.5 kHz 7.8125 kHz/ 62.5 kHz/ 6.25 kHz/ 50 kHz/ 3.90625 kHz 31.25 kHz ...
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... S : swallow counter frequency division ratio The variable frequency division ranges of M and S are as follows, and are set as binary. 32 ≤ M ≤ 1023 (32 ≤ M ≤ 511 for B-1 mode) 0 ≤ S ≤ 31 3-1) The CXA3235N control format is as follows. 3-1-1 : B-0/B-1/B-2/B-3 Modes Write-mode : Slave Receiver MSB ...
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... The CXA3236N control format is as follows. The BU and FMT data order is switched for the CXA3235N. 3-2-1 : B-0/B-1/B-2/B-3 Modes Write-mode : Slave Receiver MSB MODE Address byte Divider byte 1 Divider byte 2 Control byte Band SW byte X : Don’t care M9 is “0” for B-1 mode. 3-2-2 : B-4 Mode Write-mode ...
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... MODE Address byte Status byte A : acknowledge bit PR : power-on reset FL : lock detection signal MA0, MA1 : address setting Reference divider 1024 512 640 bit7 bit6 bit5 bit4 —14— CXA3235/3236N bit3 bit2 bit1 bit0 0 MA1 MA0 ...
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... LOW t =HIGH clock pulse width HIGH HSTA LOW HIGH CLOCK t SDAT t HDAT t SSTO —15— SDAT HDAT DATACHANGE =Data setup time =Data hold time =Stop setup time =Rise time =Fall time CXA3235/3236N t SSTO STOP ...
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... RF input level [dBm] Circuit current vs. Supply voltage 2 15 UHF VHF 10 5 5.3 5.4 4.7 4.8 4.9 V Band SW output voltage vs. Output current (FMT) 9.2 9.0 8.8 8.6 5.0 4.8 4.6 4 =100MHz (VHF =450MHz (UHF both f=45MHz IF – —16— CXA3235/3236N 5.0 5.1 5.2 5.3 5 Supply voltage [ 3= 3= Output current [mA] ...
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... Oscillation frequency [MHz] f =129MHz Local f =83.25MHz P f =86.83MHz, (f –12dB =87.75MHz, (f –1.7dB =45.75MHz ±920kHz Beat IF 0 +10 +20 —17— CXA3235/3236N f =45MHz IF UHF V + – =5V) CC UHF ...
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... Tuning Response Time –90,0000ms –90,0000ms VHF (Low) 95MHz VHF (High) 395MHz T=70ms 10,0000ms 20.0ms/div UHF 413MHz UHF 847MHz T=70ms 10,0000ms 20.0ms/div —18— CXA3235/3236N 5.0V/div offset 10.0V 110,000ms 5.0V/div offset 10.0V 110,000ms ...
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... CENTER 45.0MHz RES BW 1.0kHz CENTER 45.0MHz RES BW 1.0kHz IF output spectrum RF input level : –40dBm VBW 10Hz IF output spectrum RF input level : –40dBm VBW 10Hz —19— CXA3235/3236N RL=0dBm 10dB/div VHF (Low) f =55MHz RF f =100MHz LO SPAN 100.0kHz SWP 30.0s RL=0dBm 10dB/div VHF (High) f =350MHz RF f =395MHz LO SPAN 100 ...
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... CENTER 45.0MHz RES BW 1.0kHz IF output spectrum RF input level : –40dBm VBW 10Hz —20— CXA3235/3236N RL=0dBm 10dB/div UHF (Low) f =800MHz RF f =845MHz LO SPAN 100.0kHz SWP 30.0s ...
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... VHF Input Impedance j25 0 –j25 UHF Input Impedance j25 0 –j25 j50 j100 50 350MHz –j100 –j50 j50 j100 50 800MHz –j100 –j50 —21— CXA3235/3236N 12 13 50MHz 1000p S11 14 15 1000p S11 350MHz ...
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... IF output Impedance 0 j50 j25 45MHz 50 –j25 –j50 —22— CXA3235/3236N j100 –j100 ...
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... This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). 30PIN SSOP (PLASTIC) 9.7 ± 0 0.65 0.15 0.13 M 0° to 10° PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT SSOP-30P-L01 LEAD MATERIAL SSOP030-P-0056 PACKAGE MASS —23— CXA3235/3236N + 0.2 1.25 – 0.1 0. 0.05 – 0.02 0.1 ± 0.1 DETAIL A EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.1g ...